87123456

素因数分解:

$2^9\times 3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:141

約数の個数: 240

約数和(自身を含む): 299174304

約数和(自身を除く): 212050848

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 37, 42, 48, 56, 63, 64, 72, 73, 74, 84, 96, 111, 112, 126, 128, 144, 146, 148, 168, 192, 219, 222, 224, 252, 256, 259, 288, 292, 296, 333, 336, 384, 438, 444, 448, 504, 511, 512, 518, 576, 584, 592, 657, 666, 672, 768, 777, 876, 888, 896, 1008, 1022, 1036, 1152, 1168, 1184, 1314, 1332, 1344, 1533, 1536, 1554, 1752, 1776, 1792, 2016, 2044, 2072, 2304, 2331, 2336, 2368, 2628, 2664, 2688, 2701, 3066, 3108, 3504, 3552, 3584, 4032, 4088, 4144, 4599, 4608, 4662, 4672, 4736, 5256, 5328, 5376, 5402, 6132, 6216, 7008, 7104, 8064, 8103, 8176, 8288, 9198, 9324, 9344, 9472, 10512, 10656, 10752, 10804, 12264, 12432, 14016, 14208, 16128, 16206, 16352, 16576, 18396, 18648, 18688, 18907, 18944, 21024, 21312, 21608, 24309, 24528, 24864, 28032, 28416, 32256, 32412, 32704, 33152, 36792, 37296, 37376, 37814, 42048, 42624, 43216, 48618, 49056, 49728, 56064, 56721, 56832, 64824, 65408, 66304, 73584, 74592, 75628, 84096, 85248, 86432, 97236, 98112, 99456, 112128, 113442, 129648, 130816, 132608, 147168, 149184, 151256, 168192, 170163, 170496, 172864, 194472, 196224, 198912, 226884, 259296, 261632, 294336, 298368, 302512, 336384, 340326, 345728, 388944, 392448, 397824, 453768, 518592, 588672, 596736, 605024, 680652, 691456, 777888, 784896, 907536, 1037184, 1177344, 1193472, 1210048, 1361304, 1382912, 1555776, 1815072, 2074368, 2354688, 2420096, 2722608, 3111552, 3630144, 4148736, 4840192, 5445216, 6223104, 7260288, 9680384, 10890432, 12446208, 14520576, 21780864, 29041152, 43561728, 87123456]

約数ペア:

[(1, 87123456), (2, 43561728), (3, 29041152), (4, 21780864), (6, 14520576), (7, 12446208), (8, 10890432), (9, 9680384), (12, 7260288), (14, 6223104), (16, 5445216), (18, 4840192), (21, 4148736), (24, 3630144), (28, 3111552), (32, 2722608), (36, 2420096), (37, 2354688), (42, 2074368), (48, 1815072), (56, 1555776), (63, 1382912), (64, 1361304), (72, 1210048), (73, 1193472), (74, 1177344), (84, 1037184), (96, 907536), (111, 784896), (112, 777888), (126, 691456), (128, 680652), (144, 605024), (146, 596736), (148, 588672), (168, 518592), (192, 453768), (219, 397824), (222, 392448), (224, 388944), (252, 345728), (256, 340326), (259, 336384), (288, 302512), (292, 298368), (296, 294336), (333, 261632), (336, 259296), (384, 226884), (438, 198912), (444, 196224), (448, 194472), (504, 172864), (511, 170496), (512, 170163), (518, 168192), (576, 151256), (584, 149184), (592, 147168), (657, 132608), (666, 130816), (672, 129648), (768, 113442), (777, 112128), (876, 99456), (888, 98112), (896, 97236), (1008, 86432), (1022, 85248), (1036, 84096), (1152, 75628), (1168, 74592), (1184, 73584), (1314, 66304), (1332, 65408), (1344, 64824), (1533, 56832), (1536, 56721), (1554, 56064), (1752, 49728), (1776, 49056), (1792, 48618), (2016, 43216), (2044, 42624), (2072, 42048), (2304, 37814), (2331, 37376), (2336, 37296), (2368, 36792), (2628, 33152), (2664, 32704), (2688, 32412), (2701, 32256), (3066, 28416), (3108, 28032), (3504, 24864), (3552, 24528), (3584, 24309), (4032, 21608), (4088, 21312), (4144, 21024), (4599, 18944), (4608, 18907), (4662, 18688), (4672, 18648), (4736, 18396), (5256, 16576), (5328, 16352), (5376, 16206), (5402, 16128), (6132, 14208), (6216, 14016), (7008, 12432), (7104, 12264), (8064, 10804), (8103, 10752), (8176, 10656), (8288, 10512), (9198, 9472), (9324, 9344)]